Dr. Oliver Freudenreich, MD
- Medicare services, 2022
- 53
- Part D claims, 2022
- 230
- Publications
- 102
- Clinical trials
- 2
- Hospital affiliations
- 1
- Practice address
- 1 Bowdoin Sq, Boston, MA 02114
- Practice phone
- Call (617) 724-0287
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Massachusetts General Physicians Organization Inc
Boston, Massachusetts
Find Dr. Freudenreich's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Oliver Freudenreich is a psychiatrist in Boston, Massachusetts
Dr. Freudenreich practices at Massachusetts General Physicians Organization Inc in Boston, Massachusetts.
Dr. Freudenreich's NPI, 1710977038, was assigned on October 27, 2005. Dr. Freudenreich holds Massachusetts license 159703.
- NPI
- 1710977038NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648268565
- NPI enumeration date
- October 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 724-0287
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Oliver Freudenreich practices at Massachusetts General Physicians Organization Inc in Boston, Massachusetts
Dr. Freudenreich's primary practice is Massachusetts General Physicians Organization Inc, at 1 Bowdoin Sq, Boston, MA 02114 in Suffolk County. The practice phone is (617) 724-0287.
- Massachusetts General Physicians Organization Inc1 Bowdoin Sq, Boston, MA 02114 · Suffolk CountyPhone(617) 724-0287
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Oliver Freudenreich is affiliated with 2 sites of care and 2 medical groups
Dr. Freudenreich's primary practice is Massachusetts General Physicians Organization Inc in Boston, Massachusetts. Dr. Freudenreich is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Freudenreich to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Oliver Freudenreich's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Freudenreich practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Physicians Organization Inc | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Oliver Freudenreich is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. Freudenreich's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Freudenreich is licensed in Massachusetts.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
Psychiatrists near Dr. Freudenreich
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Oliver Freudenreich billed Medicare for 53 services in 2022
CMS data shows 53 Medicare services from Dr. Freudenreich across 1 procedure code in 2022, all of them office visits. Medicare paid $4,496 for them. Every service was in an office.
Dr. Freudenreich's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1522022: 5365%
Dr. Freudenreich compared with the Massachusetts median for psychiatrists, 2022
- Dr. Freudenreich
- Massachusetts median
- Medicare services
- 53vs 17269% below
- Part D claims
- 230vs 922.5 times
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Freudenreich's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Freudenreich?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Freudenreich and other psychiatrists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Oliver Freudenreich wrote 230 Medicare Part D claims in 2022
In 2022, Dr. Freudenreich wrote 230 Medicare Part D claims. They cover 8 drugs, with $22,101 in total drug cost. In 2021, CMS named 258 claims across 13 drugs.
Dr. Freudenreich's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2582022: 23011%
Drugs named by CMS: 8 in 2022, 13 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Oliver Freudenreich takes part in Medicare
Dr. Freudenreich accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Oliver Freudenreich has 102 publications on record
Dmand AI links 102 papers to Dr. Freudenreich, published from 2007 to 2025. 2020 was the busiest year, with 8. The most frequent topics are Schizophrenia, Antipsychotic Agents and Clozapine. Dr. Freudenreich has published most often in Psychosomatics. Dr. Freudenreich's most frequent co-authors are David Charles Henderson, MD, Xiaoduo Fan, MD and John Querques, MD.
Dr. Freudenreich's papers by year, 2016 to 2025
Topics Dr. Freudenreich writes about most
- Schizophrenia
- Antipsychotic Agents
- Clozapine
- Psychotic Disorders
- Double-Blind Method
- Mental Disorders
- COVID-19
- Diagnosis, Differential
Dr. Freudenreich's most frequent co-authors
- David Charles Henderson, MD16 shared papers
- Xiaoduo Fan, MD15 shared papers
- John Querques, MD12 shared papers
Recent publications by Dr. Freudenreich
See who Dr. Freudenreich researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Freudenreich works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Oliver Freudenreich has worked on 2 clinical trials
Dmand AI links Dr. Freudenreich to 2 clinical trials. Conditions studied include Psychotic Disorders, Schizophrenia and Alcoholism.
Clinical trials with Dr. Freudenreich by phase
- NonePhase 1: no trials
- 1Phase 2: 1 trial
- NonePhase 3: no trials
- 1Phase 4: 1 trial
Conditions in Dr. Freudenreich's trials
- Psychotic Disorders
- Schizophrenia
- Alcoholism
- Schizophrenia Spectrum and Other Psychotic Disorders
Investigators on the most trials with Dr. Freudenreich
Recent clinical trials with Dr. Freudenreich
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Oliver Freudenreich received $20,591 in industry payments from 2017 to 2021
CMS Open Payments shows 22 general payments to Dr. Freudenreich from 5 drug and device companies from 2017 to 2021. Consulting fees make up the largest share, 92% of the total. Neurocrine BioSciences, Inc. paid the most, $10,975.
General payments to Dr. Freudenreich by program year, 2017 to 2021
General payments to Dr. Freudenreich by kind, 2017 to 2021
- Consulting fees$18,85092%
- Travel and lodging$1,1886%
- Food and beverage$5533%
Companies that paid Dr. Freudenreich the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Oliver Freudenreich's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Oliver Freudenreich
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Oliver Freudenreich's NPI number?
Dr. Oliver Freudenreich's NPI number is 1710977038. It was assigned on October 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Oliver Freudenreich?
Dr. Oliver Freudenreich is a psychiatrist in Boston, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Oliver Freudenreich practice?
Dr. Freudenreich practices at 1 Bowdoin Sq, Boston, MA 02114. Dr. Freudenreich's primary practice is Massachusetts General Physicians Organization Inc in Boston, Massachusetts. Dmand AI also links Dr. Freudenreich to 1 medical group.
What is Dr. Oliver Freudenreich's office phone number?
The practice phone on file for Dr. Freudenreich is (617) 724-0287.
What is Dr. Oliver Freudenreich's medical license number?
Dr. Freudenreich holds Massachusetts license 159703.
Which hospitals is Dr. Oliver Freudenreich affiliated with?
Dr. Freudenreich is affiliated with Massachusetts General Hospital.
What medical group is Dr. Oliver Freudenreich part of?
Dr. Freudenreich is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Freudenreich to 1 more medical group.
Does Dr. Oliver Freudenreich accept Medicare?
Yes. CMS data shows Dr. Freudenreich billed Medicare for 53 services in 2022, and Dr. Freudenreich accepts Medicare assignment.
What services does Dr. Oliver Freudenreich bill to Medicare?
In 2022, Dr. Freudenreich's most billed Medicare services were office visit, established patient (99214).
What drugs does Dr. Oliver Freudenreich prescribe most?
In 2022 Medicare Part D data, Dr. Freudenreich's most prescribed drugs by claims were Clozapine, Aripiprazole and Olanzapine.
Show 4 more questionsShow fewer questions
Has Dr. Oliver Freudenreich received payments from drug or device companies?
CMS Open Payments shows $20,591 in general payments to Dr. Freudenreich from 5 companies from 2017 to 2021. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Oliver Freudenreich been practicing?
Dr. Freudenreich's NPI was assigned in 2005.
Does Dr. Oliver Freudenreich do research?
Dmand AI links 102 publications to Dr. Freudenreich, published from 2007 to 2025. Dr. Freudenreich has worked on 2 clinical trials.
Who does Dr. Oliver Freudenreich publish with?
Dr. Freudenreich's most frequent co-authors are David Charles Henderson, MD (16 shared papers), Xiaoduo Fan, MD (15 shared papers) and John Querques, MD (12 shared papers).
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